4000$ is invested at 3% interest. How much money must be invested at 5% interest so that the total interest from the two investments is $195 after a year?

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(1) Answers

Cibula685

Hi there
4000$ is invested at 3% interest so the interest of this account is
4,000×0.03=120
be invested at 5% interest
the total interest from the two investments is $195
120+0.05x=195
Solve for x to get the amount invested at 5%
120-120+0.05x=195-120 subtract each side by 120
0.05x=195−120
0.05x=75. Divide each side by 0.05
0.05/0.05 X=75/0.05
X=75/0.05
X=1,500 be invested at 5%
Good luck!